SE9704267L - waveguide - Google Patents
waveguideInfo
- Publication number
- SE9704267L SE9704267L SE9704267A SE9704267A SE9704267L SE 9704267 L SE9704267 L SE 9704267L SE 9704267 A SE9704267 A SE 9704267A SE 9704267 A SE9704267 A SE 9704267A SE 9704267 L SE9704267 L SE 9704267L
- Authority
- SE
- Sweden
- Prior art keywords
- filter
- center line
- resonator
- resonator cavity
- waveguide
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49016—Antenna or wave energy "plumbing" making
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A waveguide filter includes one or more resonator cavities which extend between an input to the filter and an output from the filter. Each resonator cavity in the filter has a center line with a chosen extension and a mechanical length. The mechanical length of the center line of each resonator cavity forms one of the parameters that determine the electrical length of the resonator cavity. The filter forms part of a microwave unit. At least one of the resonator cavities of the filter has a curved extension with respect to its center line.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9704267A SE510960C2 (en) | 1997-11-21 | 1997-11-21 | waveguide |
AU12690/99A AU1269099A (en) | 1997-11-21 | 1998-11-19 | Waveguide filter |
PCT/SE1998/002094 WO1999027605A2 (en) | 1997-11-21 | 1998-11-19 | Waveguide filter |
US09/195,992 US6181224B1 (en) | 1997-11-21 | 1998-11-20 | Waveguide filter with a resonator cavity having inner and outer edges of different lengths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9704267A SE510960C2 (en) | 1997-11-21 | 1997-11-21 | waveguide |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9704267D0 SE9704267D0 (en) | 1997-11-21 |
SE9704267L true SE9704267L (en) | 1999-05-22 |
SE510960C2 SE510960C2 (en) | 1999-07-12 |
Family
ID=20409059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9704267A SE510960C2 (en) | 1997-11-21 | 1997-11-21 | waveguide |
Country Status (4)
Country | Link |
---|---|
US (1) | US6181224B1 (en) |
AU (1) | AU1269099A (en) |
SE (1) | SE510960C2 (en) |
WO (1) | WO1999027605A2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2359667A (en) * | 2000-02-26 | 2001-08-29 | Alan Frederick Corlett | Filter manufacturing method |
US6535087B1 (en) * | 2000-08-29 | 2003-03-18 | Com Dev Limited | Microwave resonator having an external temperature compensator |
US6657520B2 (en) | 2000-10-18 | 2003-12-02 | Dragonwave, Inc. | Waveguide filter |
US6876277B2 (en) * | 2001-12-26 | 2005-04-05 | Dragonwave, Inc. | E-plane filter and a method of forming an E-plane filter |
US6657391B2 (en) | 2002-02-07 | 2003-12-02 | Siemens Medical Solutions Usa, Inc. | Apparatus and method for establishing a Q-factor of a cavity for an accelerator |
US7009469B2 (en) * | 2002-06-28 | 2006-03-07 | Harris Corporation | Compact waveguide filter and method |
FR2853994A1 (en) * | 2003-10-23 | 2004-10-22 | Thomson Licensing Sa | Waveguide filter, has filtering zone with resonant cavities that are oriented according to vector parallel to electric/electromagnetic field, where zone is curved around axis parallel to vector based on radius of curvature |
JP2005341350A (en) * | 2004-05-28 | 2005-12-08 | New Japan Radio Co Ltd | Filter |
GB201213201D0 (en) * | 2012-07-25 | 2012-09-05 | Pro Brand Internat Europ Ltd | Cutoff filter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161403A (en) | 1982-03-18 | 1983-09-26 | Nec Corp | Band-pass filter |
JPS58187001A (en) | 1982-04-27 | 1983-11-01 | Nec Corp | Band pass filter |
US4439747A (en) * | 1982-06-07 | 1984-03-27 | Hughes Aircraft Co. | Method for improving selectivity in cylindrical TE011 filters by TE211 /TE311 mode control |
IT1206330B (en) * | 1983-10-19 | 1989-04-14 | Telettra Lab Telefon | MULTI-CAVITY MICROWAVE FILTERS. |
DE3621298A1 (en) * | 1986-06-25 | 1988-01-07 | Ant Nachrichtentech | MICROWAVE FILTER WITH MULTIPLE-COUPLED HOMELINE RESONATORS |
GB9114970D0 (en) * | 1991-07-11 | 1991-08-28 | Filtronics Components | Microwave filter |
US5576674A (en) * | 1995-03-17 | 1996-11-19 | Allen Telecom Group, Incorporated | Optimum, multiple signal path, multiple-mode filters and method for making same |
GB9506866D0 (en) * | 1995-04-03 | 1995-05-24 | Cameron Richard J | Dispersion compensation technique and apparatus for microwave filters |
US5739734A (en) * | 1997-01-13 | 1998-04-14 | Victory Industrial Corporation | Evanescent mode band reject filters and related methods |
-
1997
- 1997-11-21 SE SE9704267A patent/SE510960C2/en not_active IP Right Cessation
-
1998
- 1998-11-19 AU AU12690/99A patent/AU1269099A/en not_active Abandoned
- 1998-11-19 WO PCT/SE1998/002094 patent/WO1999027605A2/en active Application Filing
- 1998-11-20 US US09/195,992 patent/US6181224B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1999027605A2 (en) | 1999-06-03 |
SE510960C2 (en) | 1999-07-12 |
SE9704267D0 (en) | 1997-11-21 |
US6181224B1 (en) | 2001-01-30 |
AU1269099A (en) | 1999-06-15 |
WO1999027605A3 (en) | 1999-09-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |